CN110053324A - A kind of lightweight sound absorption landscape barrier and preparation method thereof - Google Patents
A kind of lightweight sound absorption landscape barrier and preparation method thereof Download PDFInfo
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- CN110053324A CN110053324A CN201910343911.7A CN201910343911A CN110053324A CN 110053324 A CN110053324 A CN 110053324A CN 201910343911 A CN201910343911 A CN 201910343911A CN 110053324 A CN110053324 A CN 110053324A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention relates to a kind of lightweight sound absorption landscape barriers and preparation method thereof.The lightweight sound absorption landscape barrier includes the first fiberglass cloth, landscape barrier surface layer, landscape barrier middle layer, landscape barrier backing layer and the second fiberglass cloth；The successively layering setting from top to bottom of first fiberglass cloth, landscape barrier surface layer, landscape barrier middle layer, landscape barrier backing layer and the second fiberglass cloth.The lightweight sound absorption landscape screen barrier soundproof effect is excellent, other impact of performance are also all satisfied the standard of JG/T 169-2016, and the preparation method only needs that raw materials used substep is mixed and formed, and simple process is easily-controllable, is conducive to large-scale production.
Description
Technical field
The invention belongs to landscape barrier fields, and in particular to a kind of lightweight sound absorption landscape barrier and preparation method thereof.
Background technique
With the high speed development of China's economic, Process of Urbanization Construction process is constantly accelerated, highway, common railway, high-speed rail,
The multiple transportation modes such as urban track traffic are developed rapidly, these roads will inevitably pass through city and its people when building
The residential area that mouth is concentrated, generated traffic noise bring very big do to the work, life, study of near roads resident
It disturbs, brings great noise pollution to major city.National environmental monitoring results show: there are about 20% in road traffic noise
City belong to intermediate pollution, 50% city belong to slight pollution, therefore establish sound barrier solve traffic noise pollution become city
The major way of road noise control.
Currently, the main material of common sound barrier has the solidifying native sound barrier of metal sound barrier, mud, PC sound barrier etc. in the market.
Wherein metal sound barrier is at high cost, easy-to-rust；For concrete acoustical barrier from great, intensity is low, and transports and installation cost is excessively high；PC
Sound barrier hardness is low, and ultra-violet resistance is poor.
Summary of the invention
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of lightweight sound absorption landscape barrier and its preparations
Method.The lightweight sound absorption landscape screen barrier soundproof effect is excellent, other impact of performance are also all satisfied the mark of JG/T 169-2016
Standard, and the preparation method only needs that raw materials used substep is mixed and formed, simple process is easily-controllable, is conducive to large-scale production.
The solution of the present invention is that provide a kind of lightweight sound absorption landscape barrier include the first fiberglass cloth, landscape screen
Hinder surface layer, landscape barrier middle layer, landscape barrier backing layer and the second fiberglass cloth；First fiberglass cloth, landscape
The successively layering setting from top to bottom of barrier surface layer, landscape barrier middle layer, landscape barrier backing layer and the second fiberglass cloth；It is described
Landscape barrier surface layer includes the raw material of following parts by weight: 35~45 parts of magnesia, 12~18 parts of flyash, magnesium chloride or magnesium sulfate
12~18 parts and 2~4 parts of anti-halogen agent；Landscape barrier middle layer includes the raw material of following parts by weight: 40~50 parts of magnesia and
2~4 parts of magnesite foaming agent or landscape barrier middle layer directly adopt rock wool board, polystyrene foam plate or extruded sheet；It is described
Landscape barrier backing layer includes the raw material of following parts by weight: 35~45 parts of magnesia, 12~18 parts of flyash, magnesium chloride or magnesium sulfate
12~18 parts and 2~4 parts of anti-halogen agent.
Preferably, the glass fiber single filament diameter of first fiberglass cloth and second fiberglass cloth is equal
It is 9~13 μm.
Preferably, the landscape barrier surface layer includes the raw material of following parts by weight: 40 parts of magnesia, 15 parts of flyash, chlorine
Change 15 parts of magnesium or magnesium sulfate and 3 parts of anti-halogen agent.
Preferably, landscape barrier middle layer includes the raw material of following parts by weight: 45 parts of magnesia and magnesite foaming agent 3
Part.
Preferably, the landscape barrier backing layer includes the raw material of following parts by weight: 40 parts of magnesia, 15 parts of flyash, chlorine
Change 15 parts of magnesium or magnesium sulfate and 3 parts of anti-halogen agent.
Preferably, the bulk density of the flyash is 0.65~0.85g/cm3, water absorption is anti-for 90~110%, 28d
Compressive Strength ratio is 40~50%.
Preferably, described 80 times of magnesite foaming agent foam multiple >, foam stabilizing time > 5h.The magnesite foaming agent selects city
The single group foaming agent that product type is SH-123L is sold, manufacturer is deep-sea energy-saving building material Science and Technology Ltd..
Wherein, the anti-halogen agent selects the rush of commercial product model GX-8# to coagulate anti-halogen agent, and manufacturer is magnesium Jia Tuxin
Profile material development corporation, Ltd..
The present invention also provides a kind of preparation methods of lightweight sound absorption landscape barrier, include the following steps:
(1) landscape barrier face stock is mixed, obtains surface layer slurry, then surface layer slurry is injected in mold, and in surface layer
Pulp surface covers the first fiberglass cloth, carries out roll-in, solidification, taking-up after the completion；
(2) landscape barrier middle layer raw material is mixed, obtains middle layer slurry, then by middle layer slurry be coated on landscape barrier surface layer into
Row solidification；Or by as the rock wool board in landscape barrier middle layer, polystyrene foam plate or extruded sheet directly with landscape barrier surface
Layer carries out compound；
(3) it is coated on landscape barrier middle layer after mixing landscape barrier backing layer raw material, then covers the second fiberglass cloth,
Roll-in, solidification are carried out after the completion, obtain lightweight sound absorption landscape barrier.
Preferably, first fiberglass cloth and the second fiberglass cloth are compound by 2~4 layers of glass fabric
It forms.
Preferably, the mixed stirring rate is 60~80r/min, and mixing time is 20~30min.
Wherein in step (1), the mold can need to be arranged to various moulding by landscape barrier, also can additionally add wide
It accuses, not only meets economic needs, but also promote ornamental value and aesthetic.
The invention has the benefit that
Lightweight sound absorption landscape barrier of the present invention, by by the first fiberglass cloth, landscape barrier surface layer, scape
See barrier middle layer, landscape barrier backing layer and the layering setting of the second fiberglass cloth, and the reasonably component of compatibility raw material and ratio
Example, not only sound insulation effect is excellent for obtained lightweight sound absorption landscape barrier, and shock resistance, bending resistance failing load, pressure resistance
The indexs such as degree, coefficient of softing, surface density, moisture content, hanging force, drying shrinkage value and radionuclide also meet and meet
The standard of JG/T 169-2016；And the preparation method only needs that raw materials used substep is mixed and formed, simple process is easily-controllable,
Be conducive to large-scale production.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1
The present embodiment provides a kind of preparation methods of lightweight sound absorption landscape barrier, include the following steps:
(1) choosing 120g bulk density is 0.65g/cm3, water absorption 110%, 28d compressive strength rate be 40% powder
Coal ash, and the rush of itself and 350g magnesia, 120g magnesium chloride, 20g model GX-8# are coagulated into anti-halogen agent under the conditions of 60r/min
30min is mixed, obtains surface layer slurry, then surface layer slurry is injected in mold, and cover the first glass fibre on surface layer slurry surface
Layer of cloth carries out roll-in after the completion, and solidifies at normal temperature, taking-up；
(2) rock wool board is directly carried out with landscape barrier surface layer compound；
(3) choosing 120g bulk density is 0.65g/cm3, water absorption 110%, 28d compressive strength rate be 40% powder
Coal ash, and the rush of itself and 350g magnesia, 120g magnesium chloride, 20g model GX-8# are coagulated into anti-halogen agent under the conditions of 60r/min
30min is mixed, obtains backing layer slurry, then backing layer slurry is coated on landscape barrier middle layer, then cover the second fiberglass cloth, it is complete
At rear carry out roll-in, and solidify at normal temperature, obtains lightweight sound absorption landscape barrier.
Wherein, first fiberglass cloth and the first fiberglass cloth are compound by 2 layers of glass fabric respectively
The glass fiber single filament diameter for forming, and forming glass fabric is 9 μm.
Embodiment 2
The present embodiment provides a kind of preparation methods of lightweight sound absorption landscape barrier, include the following steps:
(1) choosing 180g bulk density is 0.85g/cm3, water absorption 90%, 28d compressive strength rate be 50% fine coal
Ash, and by it with 450g magnesia, the rush of 180g magnesium sulfate, 40g model GX-8# coagulates anti-halogen agent and mixes under the conditions of 80r/min
20min is closed, obtains surface layer slurry, then surface layer slurry is injected in mold, and cover the first glass fabric on surface layer slurry surface
Layer, carries out roll-in, and solidify at normal temperature, taking-up after the completion；
(2) polystyrene foam plate is carried out with landscape barrier surface layer compound；
(3) choosing 180g bulk density is 0.85g/cm3, water absorption 90%, 28d compressive strength rate be 50% fine coal
Ash, and by it with 450g magnesia, the rush of 180g magnesium sulfate, 40g model GX-8# coagulates anti-halogen agent and mixes under the conditions of 80r/min
20min is closed, backing layer slurry is obtained, then backing layer slurry is coated on landscape barrier middle layer, then cover the second fiberglass cloth, completes
After carry out roll-in, and solidify at normal temperature, obtain lightweight sound absorption landscape barrier.
Wherein, first fiberglass cloth and the first fiberglass cloth are compound by 4 layers of glass fabric respectively
The glass fiber single filament diameter for forming, and forming glass fabric is 13 μm.
Embodiment 3
The present embodiment provides a kind of preparation methods of lightweight sound absorption landscape barrier, include the following steps:
(1) choosing 120g bulk density is 0.65g/cm3, water absorption 90%, 28d compressive strength rate be 40% fine coal
Ash, and by it with 450g magnesia, the rush of 120g magnesium sulfate, 40g model GX-8# coagulates anti-halogen agent and mixes under the conditions of 60r/min
20min is closed, obtains surface layer slurry, then surface layer slurry is injected in mold, and cover the first glass fabric on surface layer slurry surface
Layer, carries out roll-in, and solidify at normal temperature, taking-up after the completion；
(2) extruded sheet is directly carried out with landscape barrier surface layer compound；
(3) choosing 120g bulk density is 0.65g/cm3, water absorption 90%, 28d compressive strength rate be 40% fine coal
Ash, and by it with 450g magnesia, the rush of 120g magnesium sulfate, 40g model GX-8# coagulates anti-halogen agent and mixes under the conditions of 60r/min
20min is closed, backing layer slurry is obtained, then backing layer slurry is coated on landscape barrier middle layer, then cover the second fiberglass cloth, completes
After carry out roll-in, and solidify at normal temperature, obtain lightweight sound absorption landscape barrier.
Wherein, first fiberglass cloth and the first fiberglass cloth are compound by 3 layers of glass fabric respectively
The glass fiber single filament diameter for forming, and forming glass fabric is 11 μm.
Embodiment 4
The present embodiment provides a kind of preparation methods of lightweight sound absorption landscape barrier, include the following steps:
(1) choosing 180g bulk density is 0.85g/cm3, water absorption 110%, 28d compressive strength rate be 50% powder
Coal ash, and the rush of itself and 350g magnesia, 180g magnesium chloride, 20g model GX-8# are coagulated into anti-halogen agent under the conditions of 80r/min
30min is mixed, obtains surface layer slurry, then surface layer slurry is injected in mold, and cover the first glass fibre on surface layer slurry surface
Layer of cloth carries out roll-in after the completion, and solidifies at normal temperature, taking-up；
(2) the magnesite foaming agent of 400g magnesia and 20g model SH-123L is mixed under the conditions of 80r/min
30min obtains middle layer slurry, then middle layer slurry is coated on landscape barrier surface layer and carries out normal temperature cure；
(3) choosing 180g bulk density is 0.85g/cm3, water absorption 110%, 28d compressive strength rate be 50% powder
Coal ash, and the rush of itself and 350g magnesia, 180g magnesium chloride, 20g model GX-8# are coagulated into anti-halogen agent under the conditions of 80r/min
30min is mixed, obtains backing layer slurry, then backing layer slurry is coated on landscape barrier middle layer, then cover the second fiberglass cloth, it is complete
At rear carry out roll-in, and solidify at normal temperature, obtains lightweight sound absorption landscape barrier.
Wherein, first fiberglass cloth and the first fiberglass cloth are compound by 2 layers of glass fabric respectively
The glass fiber single filament diameter for forming, and forming glass fabric is 13 μm.
Embodiment 5
The present embodiment provides a kind of preparation methods of lightweight sound absorption landscape barrier, include the following steps:
(1) choosing 150g bulk density is 0.75g/cm3, water absorption 100%, 28d compressive strength rate be 45% powder
Coal ash, and the rush of itself and 400g magnesia, 150g magnesium chloride, 30g model GX-8# are coagulated into anti-halogen agent under the conditions of 70r/min
25min is mixed, obtains surface layer slurry, then surface layer slurry is injected in mold, and cover the first glass fibre on surface layer slurry surface
Layer of cloth carries out roll-in after the completion, and solidifies at normal temperature, taking-up；
(2) the magnesite foaming agent of 500g magnesia and 40g model SH-123L is mixed under the conditions of 80r/min
30min obtains middle layer slurry, then middle layer slurry is coated on landscape barrier surface layer and carries out normal temperature cure；
(3) choosing 150g bulk density is 0.75g/cm3, water absorption 100%, 28d compressive strength rate be 45% powder
Coal ash, and the rush of itself and 400g magnesia, 150g magnesium chloride, 30g model GX-8# are coagulated into anti-halogen agent under the conditions of 70r/min
25min is mixed, obtains backing layer slurry, then backing layer slurry is coated on landscape barrier middle layer, then cover the second fiberglass cloth, it is complete
At rear carry out roll-in, and solidify at normal temperature, obtains lightweight sound absorption landscape barrier.
Wherein, first fiberglass cloth and the first fiberglass cloth are compound by 3 layers of glass fabric respectively
The glass fiber single filament diameter for forming, and forming glass fabric is 9 μm.
For the performance for verifying lightweight sound absorption landscape barrier of the present invention, 5 gained lightweight sound absorption scape of embodiment is chosen
See barrier measurement.Measurement commission " national building material product Quality Supervision and Inspection Center (Sichuan) " carries out, and detection is according to " JG/T
169-2016 light lath for building partition wall generic specifications ", testing result is respectively as shown in table 1, table 2 and table 3.
The result of 1 detection project of table
2 air-borne sound weighted transmission loss of table
| Detection project | Technical requirements | Unit | Testing result | Individual event determines |
| Air-borne sound weighted transmission loss | ≥35 | dB | 37 | It is qualified |
The specific data of 3 oise insulation factor of table
Air-borne sound weighted transmission loss: Rw(C；Ctr)=38 (- 1；-5)dB；C100-5000=-1dB；Ctr,100-5000=-5dB；
Wherein C, CtrFor frequency spectrum correction amount (C be used for internal partition member when, CtrWhen for fender member).
Note: sample is used for internal partition member, frequency spectrum correction amount C=-1, air-borne sound weighted transmission loss Rw=37dB.
As a result with conclusion:
It can be seen that by testing result, 5 gained lightweight sound absorption landscape barrier of embodiment has good soundproof effect, air
Sound weighted transmission loss reaches 37dB, and other testing results also meet that " JG/T 169-2016 light lath for building partition wall is general
Technical requirements ", i.e. lightweight sound absorption landscape barrier overall performance is excellent, and soundproof effect is prominent.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of lightweight sound absorption landscape barrier, which is characterized in that including the first fiberglass cloth, landscape barrier surface layer, scape
See barrier middle layer, landscape barrier backing layer and the second fiberglass cloth；First fiberglass cloth, landscape barrier surface layer,
The successively layering setting from top to bottom of landscape barrier middle layer, landscape barrier backing layer and the second fiberglass cloth；The landscape barrier
Surface layer includes the raw material of following parts by weight: 35~45 parts of magnesia, 12~18 parts of flyash, magnesium chloride or 12~18 parts of magnesium sulfate
With 2~4 parts of anti-halogen agent；Landscape barrier middle layer includes the raw material of following parts by weight: 40~50 parts of magnesia and magnesite foam
2~4 parts of agent or landscape barrier middle layer directly adopt rock wool board, polystyrene foam plate or extruded sheet；The landscape barrier
Backing layer includes the raw material of following parts by weight: 35~45 parts of magnesia, 12~18 parts of flyash, magnesium chloride or 12~18 parts of magnesium sulfate
With 2~4 parts of anti-halogen agent.
2. lightweight sound absorption landscape barrier according to claim 1, which is characterized in that first fiberglass cloth and
The glass fiber single filament diameter of second fiberglass cloth is 9~13 μm.
3. lightweight sound absorption landscape barrier according to claim 1, which is characterized in that the landscape barrier surface layer includes such as
The raw material of lower parts by weight: 15 parts of 40 parts of magnesia, 15 parts of flyash, magnesium chloride or magnesium sulfate and 3 parts of anti-halogen agent.
4. lightweight sound absorption landscape barrier according to claim 1, which is characterized in that landscape barrier middle layer includes such as
The raw material of lower parts by weight: 45 parts and 3 parts of magnesite foaming agent of magnesia.
5. lightweight sound absorption landscape barrier according to claim 1, which is characterized in that the landscape barrier backing layer includes such as
The raw material of lower parts by weight: 15 parts of 40 parts of magnesia, 15 parts of flyash, magnesium chloride or magnesium sulfate and 3 parts of anti-halogen agent.
6. lightweight sound absorption landscape barrier according to claim 1, which is characterized in that the bulk density of the flyash is
0.65~0.85g/cm3, water absorption is that 90~110%, 28d compressive strength rate is 40~50%.
7. lightweight sound absorption landscape barrier according to claim 1, which is characterized in that the magnesite foaming agent foam multiple
80 times of >, foam stabilizing time > 5h.
8. the preparation method of claim 1~7 any lightweight sound absorption landscape barrier, includes the following steps:
(1) landscape barrier face stock is mixed, obtains surface layer slurry, then surface layer slurry is injected in mold, and in surface layer slurry
Surface covers the first fiberglass cloth, carries out roll-in, solidification, taking-up after the completion；
(2) landscape barrier middle layer raw material is mixed, obtains middle layer slurry, then middle layer slurry is coated on landscape barrier surface layer and is consolidated
Change；Or by as the rock wool board in landscape barrier middle layer, polystyrene foam plate or extruded sheet directly with landscape barrier surface layer into
Row is compound；
(3) it is coated on landscape barrier middle layer after mixing landscape barrier backing layer raw material, then covers the second fiberglass cloth, completes
Roll-in, solidification are carried out afterwards, obtain lightweight sound absorption landscape barrier.
9. the preparation method of lightweight sound absorption landscape barrier according to claim 8, which is characterized in that first glass
Scrim cloth and the second fiberglass cloth are combined by 2~4 layers of glass fabric.
10. the preparation method of lightweight sound absorption landscape barrier according to claim 8, which is characterized in that the mixing
Stirring rate is 60~80r/min, and mixing time is 20~30min.
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| CN105563952A (en) * | 2015-12-18 | 2016-05-11 | 江苏万瑞新材料有限公司 | Light-weight heat-preservation sound insulating board |
| CN106193505A (en) * | 2016-07-04 | 2016-12-07 | 常州布鲁板业科技有限公司 | Non-woven fabrics plate structure and formula thereof and processing technique |
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